Angie baked 100 cookies and 20 brownies. she wants to split them into equal groups for the big sale. each group must have the same number of cookies and brownies, with none left over. what is the greatest number of groups she can make? angie baked 100 cookies and 20 brownies. she wants to split them into equal groups for the big sale. each group must have the same number of cookies and brownies, with none left over. what is the greatest number of groups she can make? angie baked 100 cookies and 20 brownies. she wants to split them into equal groups for the big sale. each group must have the same number of cookies and brownies, with none left over. what is the greatest number of groups she can make?